ChimeraX bug report submission

[tic20@…]

The following bug report has been submitted:
Platform:        Linux-3.10.0-957.5.1.el7.x86_64-x86_64-with-centos-7.6.1810-Core
ChimeraX Version: 0.9 (2019-03-14)
Description
Trying to implement a new feature in ISOLDE that optimizes the magnification of an EM map against model energy. Was working with last week's build, but now I get the following message. ChimeraX itself mostly freezes (log doesn't update, OpenGL display unresponsive), but I'm hoping that reporting this way will get the full traceback.

Partial traceback I get: 

TypeError: cannot unpack non-iterable NoneType object

File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-packages/chimerax/core/logger.py", line 720, in probably_chimera1_session
etype, evalue, etraceback = exc_info


(Describe the actions that caused this problem to occur here)

Log:
Startup Messages  
---  
warning | 'clip' is a prefix of an existing command 'clipper'  
note | FYI: command is replacing existing command: "ui"  
  
UCSF ChimeraX version: 0.9 (2019-03-14)  
© 2016-2019 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> toolshed show ISOLDE

before.pdb title:  
Crystal structure of etub from clostridium kluyveri [more info...]  
  
Chain information for before.pdb #1  
---  
Chain | Description  
A | predicted microcompartment protein  
  
before.pdb title:  
Crystal structure of etub from clostridium kluyveri [more info...]  
  
Chain information for before.pdb  
---  
Chain | Description  
1.3/A | predicted microcompartment protein  
  
Done loading forcefield  

> toolshed show Shell

/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/IPython/core/history.py:226: UserWarning: IPython History requires
SQLite, your history will not be saved  
warn("IPython History requires SQLite, your history will not be saved")  

> close #1

before.pdb title:  
Crystal structure of etub from clostridium kluyveri [more info...]  
  
Chain information for before.pdb #1  
---  
Chain | Description  
A | predicted microcompartment protein  
  
before.pdb title:  
Crystal structure of etub from clostridium kluyveri [more info...]  
  
Chain information for before.pdb  
---  
Chain | Description  
1.3/A | predicted microcompartment protein  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 2536, in
_initial_min_and_start  
self._line_search(self._search_index)  
TypeError: 'numpy.ndarray' object is not callable  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/delayed_reaction.py", line 65, in callback  
self.ff(*self.ff_args)  
File "/home/tic20/.local/share/ChimeraX/0.9/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1505, in
_update_coordinates_and_repeat  
self.triggers.activate_trigger('coord update', None)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 128, in _redraw_timer_callback  
if not self.draw_new_frame():  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 53, in draw_new_frame  
session.triggers.activate_trigger('new frame', self)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 325, in activate_trigger  
trigger.activate(data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 190, in activate  
ret = handler.invoke(data, self._remove_bad_handlers)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 132, in invoke  
_report('%s "%s": %s' % (TRIGGER_ERROR, self._name, str(e)))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 943, in <lambda>  
logger.report_exception(preface=preface))  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 421, in report_exception  
elif probably_chimera1_session(exc_info):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
TypeError: cannot unpack non-iterable NoneType object  
  
TypeError: cannot unpack non-iterable NoneType object  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/logger.py", line 720, in probably_chimera1_session  
etype, evalue, etraceback = exc_info  
  
See log for complete Python traceback.  
  




OpenGL version: 3.3.0 NVIDIA 415.27
OpenGL renderer: TITAN Xp/PCIe/SSE2
OpenGL vendor: NVIDIA Corporation